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DE4119908A1 - Piston for IC engine - has bearing sleeve shrunk onto gudgeon pin for floating connecting rod location - Google Patents

Piston for IC engine - has bearing sleeve shrunk onto gudgeon pin for floating connecting rod location

Info

Publication number
DE4119908A1
DE4119908A1 DE19914119908 DE4119908A DE4119908A1 DE 4119908 A1 DE4119908 A1 DE 4119908A1 DE 19914119908 DE19914119908 DE 19914119908 DE 4119908 A DE4119908 A DE 4119908A DE 4119908 A1 DE4119908 A1 DE 4119908A1
Authority
DE
Germany
Prior art keywords
piston
connecting rod
piston pin
engine
bearing sleeve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
DE19914119908
Other languages
German (de)
Inventor
Bernd Faeustle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mahle GmbH
Original Assignee
Mahle GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mahle GmbH filed Critical Mahle GmbH
Priority to DE19914119908 priority Critical patent/DE4119908A1/en
Publication of DE4119908A1 publication Critical patent/DE4119908A1/en
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00—Pistons 
    • F02F3/0015—Multi-part pistons
    • F02F3/0069—Multi-part pistons the crown and skirt being interconnected by the gudgeon pin
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J1/00—Pistons; Trunk pistons; Plungers
    • F16J1/10—Connection to driving members
    • F16J1/14—Connection to driving members with connecting-rods, i.e. pivotal connections
    • F16J1/16—Connection to driving members with connecting-rods, i.e. pivotal connections with gudgeon-pin; Gudgeon-pins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0448—Steel

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

The piston is esp for use in IC engines. It has a gudgen pin for attachment of the connecting rod which is located in the piston head but floating in the connecting rod. A bearing sleeve is located between the gudgen pin and corresponding connecting rod, and is fixed to either component. The sleeve (7) forms a bush shrunk onto the piston bolt (4) and operating between bolt and connecting rod. USE/ADVANTAGE - Design simplification for piston for IC engine.

Description

Die Erfindung betrifft einen Kolben, insbesondere für Verbrennungsmotoren, nach dem Oberbegriff des An­ spruchs 1.The invention relates to a piston, in particular for Internal combustion engines, according to the generic term of the An saying 1.

Derartige Kolben sind aus der DE-AS 28 28 402 bekannt und besitzen zur Befestigung des Pleuels einen in Kolbenbolzenbohrungen schwimmend gelagerten Kolben­ bolzen. Zwischen Kolbenbolzen und den Kolbenbolzen­ bohrungen sowie der Pleuelbohrung ist jeweils eine Buchse angeordnet; wobei die Buchsen einerseits mit Spiel in den Kolbenbolzenbohrungen sitzen und ande­ rerseits schwimmend auf dem Kolbenbolzen angeordnet sind.Such pistons are known from DE-AS 28 28 402 and have an in for attaching the connecting rod Piston pin bores floating pistons bolt. Between the piston pin and the piston pin holes and the connecting rod bore is one Socket arranged; with the sockets on the one hand Play in the piston pin bores and others arranged floating on the piston pin are.

Nachteilig an einer derartigen Ausführung ist die Notwendigkeit von drei einzelnen Buchsen sowie die aufwendige Montage.A disadvantage of such an embodiment is that Need of three individual sockets as well complex assembly.

Hier Abhilfe zu schaffen ist das Problem der vorlie­ genden Erfindung.The problem here is to remedy this invention.

Gelöst wird dieses Problem durch eine Ausführung ei­ nes Kolbens nach den kennzeichnenden Merkmalen des Anspruchs 1. This problem is solved by an execution nes piston according to the characteristic features of the Claim 1.  

Weitere zweckmäßige Ausgestaltungen nach der Erfin­ dung sind in den Uneransprüchen enthalten.Further expedient configurations according to the Erfin are included in the non-claims.

Es ist zwar bereits ein Kolbenbolzen mit durchgehen­ der Hülse aus der US-PS 16 70 564 bekannt, bei der auf einem Aluminiumkern eine Stahlhülse aufgebracht ist. Um die Stahlhülse mit dem Aluminiumkern zu verbinden, wird der Aluminiumkern in einem speziellen Verfahren und einer entsprechenden Vorrichtung gestaucht. Die äußere Hülse dieses Kolbenbolzens dient jedoch nur zur Stabilisierung des Kolbenbolzens an sich und be­ steht nicht aus einem Lagermetall.A piston pin is already going through the sleeve from US-PS 16 70 564 known in the a steel sleeve is applied to an aluminum core. To connect the steel sleeve to the aluminum core, the aluminum core is processed using a special process and a corresponding device compressed. The outer sleeve of this piston pin is only used to stabilize the piston pin itself and be does not stand out of a bearing metal.

Zur weiteren Erläuterung der Erfindung sind nachfol­ gend zwei Ausführungsbeispiele in der Zeichnung dar­ gestellt. Es zeigtTo further explain the invention are following gend two embodiments in the drawing posed. It shows

Fig. 1 einen erfindungsgemäßen Kolben im Schnitt, Fig. 1 shows a piston according to the invention in section;

Fig. 2 eine weitere Ausführung eines er­ findungsgemäßen Kolbens im Schnitt. Fig. 2 shows another embodiment of a piston according to the invention in section.

Ein Pendelschaftkolben 1 umfaßt einen aus einer Stahllegierung bestehenden Kolbenkopf 2 und einen aus einer Aluminiumlegierung bestehenden Schaft 3, die über einen aus einer Stahllegierung bestehenden Kol­ benbolzen 4 untereinander und mit einem Pleuel 5 ver­ bunden sind.A pendulum-shaft piston 1 comprises a piston head 2 made of a steel alloy and a shaft 3 made of an aluminum alloy, which is bolted to one another and connected to a connecting rod 5 by a piston bolt 4 made of a steel alloy.

Auf den Kolbenbolzen 4 ist eine Buchse 6, 7 aus einem Lagermetall aufgeschrumpft, wobei das Lagermetall ein Gleitlagerstoff folgender Legierungsgruppe sein kann: CuAL10NiSFe4 oder CuZn3Si.A bushing 6 , 7 made of a bearing metal is shrunk onto the piston pin 4 , the bearing metal being a plain bearing material of the following alloy group: CuAL10NiSFe4 or CuZn3Si.

Bei dem Ausführungsbeispiel gemäß Fig. 1 überdeckt die Buchse 6 die gesamte Länge des Kolbenbolzens 4, der mittels in Nuten in den Kolbenbolzenbohrungen des Schafts 3 gelagerten Sicherungsringen 8, 9 in seiner Lage fixiert wird.In the embodiment according to FIG. 1, the socket 6 covers the entire length of the piston pin 4, the bearing means in grooves in the piston pin bores 3 of the shaft retaining rings 8, is fixed in its base 9.

Bei dem Ausführungsbeispiel gemäß Fig. 2 überdeckt die Buchse 7 einen Bereich des Kolbenbolzens 4, der mit den beiden Kolbenbolzenbohrungen des Kolbenkopfes 2, der Pleuelbohrung und einer Kolbenbolzenbohrung 13 des Schafts 3 zusammenwirkt, so daß das eine Ende 10 des Kolbenbolzens 4 buchsenlos in die zweite Kolben­ bolzenbohrung 11 des Schafts 3 eingreift und die Buchse 7 als eine erste Sicherung gegen axiales Ver­ schieben des Kolbenbolzens 4 am Schaft 3 ansteht. Als zweite Sicherung wird wiederum ein Sicherungsring 12 verwendet, der in einer umlaufenden Nut der zweiten Kolbenbolzenbohrung 13 des Schafts 3 liegt. Durch ei­ ne derartige Ausführung wird einerseits ein Siche­ rungsring sowie andererseits das Anbringen einer zu­ sätzlichen Nut in einer Kolbenbolzenbohrung des Schafts eingespart.In the exemplary embodiment according to FIG. 2, the bushing 7 covers a region of the piston pin 4 , which cooperates with the two piston pin bores of the piston head 2 , the connecting rod bore and a piston pin bore 13 of the shaft 3 , so that one end 10 of the piston pin 4 fits into the second without a bushing Piston pin bore 11 of the shaft 3 engages and the bushing 7 as a first safeguard against axial displacement of the piston pin 4 on the shaft 3 is present. A second locking ring 12 , which lies in a circumferential groove of the second piston pin bore 13 of the shaft 3 , is again used as the second securing means. By ei ne such execution on the one hand a hedging ring and on the other hand the installation of an additional groove in a piston pin bore of the shaft is saved.

Die Vorteile der erfindungsgemäßen Ausführungsbei­ spiele liegen vor allem darin, daß anstatt mehreren Buchsen nur noch eine Buchse herzustellen und zu mon­ tieren ist. Außerdem ist die durchgehende Buchse auf dem Kolbenbolzen leicht zu positionieren und zwar be­ züglich axialer und Verdrehrichtung, so daß sich die­ se Ausführung insbesondere auch für Trapez- bzw. Stu­ fen-Ausführung des Pleuels gut eignet. Weiterhin wird gegenüber Kolben mit gleichen Baumaßen die Kon­ taktfläche zwischen Kolbenbolzen und den entsprechen­ den Bohrungen im Pleuel und dem Kolben größer, da die Relativbewegung am größeren Buchsenaußendurchmesser erfolgt, so daß einerseits die Flächenpressung insge­ samt günstiger wird, wodurch die Verwendung einer einfacheren Buchse möglich ist, und andererseits ein Härten des Kolbenbolzens aus Verschleißgründen ent­ fallen kann.The advantages of the embodiment according to the invention games are mainly that instead of several Only one socket to produce and mon animals is. In addition, the through socket is open the piston pin easy to position and be with respect to the axial and rotational directions, so that the  Execution especially for trapezoidal or stu fen design of the connecting rod is well suited. Farther compared to pistons with the same dimensions, the con tact area between piston pin and the corresponding the holes in the connecting rod and the piston larger because the Relative movement on the larger outer diameter of the bush takes place so that on the one hand the total surface pressure velvet becomes cheaper, which makes the use of a simpler socket is possible, and the other one Hardening the piston pin due to wear can fall.

Die Anwendung eines derartigen Kolbenbolzens mit auf­ geschrumpfter durchgehender Buchse ist ebenfalls bei einem Kolben aus einer Aluminiumlegierung denkbar.The application of such a piston pin with shrunk through bushing is also at a piston made of an aluminum alloy is conceivable.

Claims (3)

1. Kolben, insbesondere für Verbrennungsmotoren, mit einem zur Befestigung des Pleuels dienenden, schwimmend im Pleuel und in der Kolbenbolzenboh­ rung gelagerten Kolbenbolzen, wobei sich zwischen Kolbenbolzen und den Gegenlaufpartnern Pleuel und Kolbenbolzenbohrung ein mit jeweils einem der Laufpartner verbundenes Lagermetall befindet, dadurch gekennzeichnet, daß das Lagermetall als mit dem Kolbenbolzen (4) verbundene den Pleuel- und den Kolbenbolzen-Boh­ rungsbereich erfassende durchgehende Buchse (6, 7) ausgebildet ist.1. Piston, in particular for internal combustion engines, with a piston pin serving to fasten the connecting rod, floating in the connecting rod and in the piston pin bore, wherein between the piston pin and the counterpart connecting rod and piston pin bore there is a bearing metal connected to one of the running partners, characterized in that that the bearing metal as the piston pin ( 4 ) connected to the connecting rod and the piston pin drilling area covering continuous bushing ( 6 , 7 ) is formed. 2. Kolben nach Anspruch 1, dadurch gekennzeichnet, daß die Buchse (6, 7) auf den Kolbenbolzen (4) aufgeschrumpft ist.2. Piston according to claim 1, characterized in that the bush ( 6 , 7 ) on the piston pin ( 4 ) is shrunk. 3. Kolben nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Material für den Kolbenbolzen (4) und den Kolben Stahl und/oder Eisen ist.3. Piston according to claim 1 or 2, characterized in that the material for the piston pin ( 4 ) and the piston is steel and / or iron.
DE19914119908 1991-06-17 1991-06-17 Piston for IC engine - has bearing sleeve shrunk onto gudgeon pin for floating connecting rod location Ceased DE4119908A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19914119908 DE4119908A1 (en) 1991-06-17 1991-06-17 Piston for IC engine - has bearing sleeve shrunk onto gudgeon pin for floating connecting rod location

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19914119908 DE4119908A1 (en) 1991-06-17 1991-06-17 Piston for IC engine - has bearing sleeve shrunk onto gudgeon pin for floating connecting rod location

Publications (1)

Publication Number Publication Date
DE4119908A1 true DE4119908A1 (en) 1992-12-24

Family

ID=6434114

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19914119908 Ceased DE4119908A1 (en) 1991-06-17 1991-06-17 Piston for IC engine - has bearing sleeve shrunk onto gudgeon pin for floating connecting rod location

Country Status (1)

Country Link
DE (1) DE4119908A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19924679A1 (en) * 1999-05-29 2000-12-21 Daimler Chrysler Ag Connecting rod has large and small eyes joining it to crank and piston, and gap
DE102013221395A1 (en) 2013-04-03 2014-10-09 Ks Kolbenschmidt Gmbh Machining process for axially low trapezoidal rings for pistons of internal combustion engines
CN106401784A (en) * 2016-06-23 2017-02-15 华晨汽车集团控股有限公司 Piston assembly with weight reducing structure

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE353456C (en) * 1920-06-12 1922-05-18 Charles C Anderson Bolt fastening for pistons, especially for internal combustion engines
US1742015A (en) * 1926-09-07 1929-12-31 Ralph R Teetor Piston pin and method of forming same
DE2828402A1 (en) * 1978-06-28 1980-02-07 Alcan Aluminiumwerke PISTON, ESPECIALLY FOR INTERNAL COMBUSTION ENGINES
DE2952117B1 (en) * 1979-12-22 1981-06-19 Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5300 Bonn Piston pin
DE3316514C1 (en) * 1983-05-06 1984-04-12 Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5300 Bonn Piston cylinder arrangement, in particular for internal combustion engines

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE353456C (en) * 1920-06-12 1922-05-18 Charles C Anderson Bolt fastening for pistons, especially for internal combustion engines
US1742015A (en) * 1926-09-07 1929-12-31 Ralph R Teetor Piston pin and method of forming same
DE2828402A1 (en) * 1978-06-28 1980-02-07 Alcan Aluminiumwerke PISTON, ESPECIALLY FOR INTERNAL COMBUSTION ENGINES
DE2952117B1 (en) * 1979-12-22 1981-06-19 Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5300 Bonn Piston pin
DE3316514C1 (en) * 1983-05-06 1984-04-12 Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5300 Bonn Piston cylinder arrangement, in particular for internal combustion engines

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
61-59065 A. M-504, Aug. 02, 1986 Vol.10/No.222 *
Patents Abstracts of Japan: 63-308270 A. M-812, April 11, 1989 Vol.13/No.148 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19924679A1 (en) * 1999-05-29 2000-12-21 Daimler Chrysler Ag Connecting rod has large and small eyes joining it to crank and piston, and gap
DE102013221395A1 (en) 2013-04-03 2014-10-09 Ks Kolbenschmidt Gmbh Machining process for axially low trapezoidal rings for pistons of internal combustion engines
CN106401784A (en) * 2016-06-23 2017-02-15 华晨汽车集团控股有限公司 Piston assembly with weight reducing structure

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Legal Events

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OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8110 Request for examination paragraph 44
8131 Rejection